Lintels

lintels are the horizontal members...this ppt discuss about the lintels ...functions...types etc
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1. LINTELS PRESENTED BY AGLAIA

2. Lintels -introduction A  lintel  is one type of beam which used to support the above wall when openings like doors, windows etc. are necessary to provide a building structure . It is used to take loads coming from above wall and transfer its load to the side walls . The lintel beam generally ends into the masonry wall so as to convey the weight carried by them to the masonry walls and its width is same to the wall width. Lintels

3. Lintels

4. function of lintel beams It supports the walls above the openings like doors, windows etc.  It provide a safeguard of the windows and doors.   It withstands the imposed loads coming from above bricks or block including the roofing members.   It is used to transfer all imposed loads to the side walls.   Sometimes  they are used as decorative architecture element. Lintels

5. Types of Lintel A ccording to the materials of their construction: 1. Timber Lintel Timber lintels are mainly used in the hilly areas where timbers are available. Without proper ventilation, timber is liable to decay. It is less durable. Timber being combustible it is vulnerable to fire. Lintels

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7. 2. Stone Lintel This type of lintel is mainly used in this area where the stone is abundantly available . Its use is mainly confined to stone masonry structures . Disadvantages I ts high cost It can’t withstand excessive transverse stress. Lintels

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9. 3. Reinforced Concrete Lintel They are used when the lintel span is smaller. They are very common in use because of their durability, rigidity, strength, and fire resisting properties. advantage They are suitable for heavy loads and larger span. economical and easy in construction. They can be either pre-cast or cast-in-situ. Lintels

10. 4. Brick Lintels Brick lintels are constructed with hard, well burnt first class brick. It can be formed as bricks on end, bricks on edge and coursed bricks laid horizontally over openings. This type of lintel is used when the opening is small (less than 1m) with light loadings condition. Bricks with frogs filled with mortar give more shear resistance at end joints than the normal bricks. Lintels

11. 5. Reinforced Brick Lintels It provide more support than the brick lintels. The depth of the reinforced brick lintels is equal to 10 cm. or multiple of 10 cm (or one brick thickness). The arrangement of the bricks should be such as that there is enough space in lengthwise between the adjacent bricks for the insertion of mild steel bars as reinforcement. After insertion bars, the remaining gap is filled with 1:3 cement mortar. 6 mm bars are used as vertical stirrups at every 3rd vertical joints. Lintels

12. 6.Steel Lintels They are suitable when the superimposed loads are heavy and the opening gaps are large. These lintels consist of channel sections or rolled steel joists. Depending upon the requirements, the lintel can be a single section or combinations of two or more. Single steel joist is either embedded in concrete or cladded with stone facing to keep the same width as the wall. Combination of two or more units are placed side by side and held in position by tube separator. Lintels

13. Thank you  Lintels For more…. Mail to [email protected]